| Added by |
 Maciej Pasztor
|
| Face value | 30 groszy |
| Catalog code (Michel) | PL 974A |
| Catalog code (Scott) | PL 737 |
| Catalog code | Yvert et Tellier PL 805A Stanley Gibbons PL 977 AFA number PL 864 Polish Stamps Catalog (Fischer) PL 830 |
| Place in series | 1 |
| Stamp colour | Black |
| Stamp use | Definitive stamp |
| Print run | 17200000 |
| Issue date | 10/07/1956 |
| Designer | Edmund John; Grav: Czesław Słania |
| Paper type | White; Middel Smooth |
| Print technique | Recess |
| Printed by | PWPW (Państwowa Wytwórnia Papierów Wartościowych) |
| Perforation | 12½ x 12¾ (harrow) or 11¾ x 11½ (harrow) |
| Height | 28.30 mm |
| Width | 22.50 mm |
| Catalog prices | No catalog prices set yet |
